1.1 sec in total
34 ms
539 ms
494 ms
Click here to check amazing O 2 V content. Otherwise, check out these important facts you probably never knew about o2v.net
Personal page-resume of Andrei Zharov. JavaScript engineer in Boston.
Visit o2v.netWe analyzed O2v.net page load time and found that the first response time was 34 ms and then it took 1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.
o2v.net performance score
name
value
score
weighting
Value2.1 s
80/100
10%
Value2.1 s
95/100
25%
Value2.1 s
99/100
10%
Value20 ms
100/100
30%
Value0
100/100
15%
Value2.7 s
97/100
10%
34 ms
37 ms
40 ms
27 ms
28 ms
Our browser made a total of 27 requests to load all elements on the main page. We found that 81% of them (22 requests) were addressed to the original O2v.net, 7% (2 requests) were made to Google-analytics.com and 7% (2 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (82 ms) relates to the external source Fonts.gstatic.com.
Page size can be reduced by 115.4 kB (7%)
1.6 MB
1.5 MB
In fact, the total size of O2v.net main page is 1.6 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 65% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.
Potential reduce by 17.0 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 6.2 kB, which is 28% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 17.0 kB or 78% of the original size.
Potential reduce by 0 B
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. O 2 V images are well optimized though.
Potential reduce by 98.4 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 98.4 kB or 63% of the original size.
We found no issues to fix!
24
24
The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of O 2 V. According to our analytics all requests are already optimized.
www.o2v.net
34 ms
stylesheets.min.css
37 ms
javascripts.min.js
40 ms
nokia.png
27 ms
pf.png
28 ms
lc.jpeg
33 ms
nu.png
31 ms
bsuir.jpg
39 ms
css
59 ms
body.png
50 ms
analytics.js
35 ms
ribbon-2.png
64 ms
cuomo.png
67 ms
ipadapps.png
70 ms
profiles.png
72 ms
rms.png
64 ms
pulse.png
65 ms
asp.png
69 ms
andrei.zharov.jpg
73 ms
social_twitter.png
66 ms
social_behance.png
66 ms
social_linked_in.png
71 ms
social_tumblr.png
72 ms
social_github.png
73 ms
collect
17 ms
0Aa8aBJcGN1n1zDNhqNrnQ.woff
62 ms
WJ6D195CfbTRlIs49IbkFw.woff
82 ms
o2v.net accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
o2v.net best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
o2v.net SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
robots.txt is not valid
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise O2v.net can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that O2v.net main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
o2v.net
Open Graph description is not detected on the main page of O 2 V. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: